Qingdao Cierne Mechanical Parts Co.,Ltd. specialized in industrial seal and mechanical parts service. Serving for world’s processing industry, petrochemical industry, paper industry, Metallury industry, Food/pharmaceutical industry, Energy/power station. Our main products are pure PTFE sheet/rod, filled PTFE sheet, expanded PTFE sheet,self adhesive PTFE tape, non-asbestos sheet.. Our products are certified by ISO and SGS.